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Finding the Fourth Proportional to 22,251.72, 33,361.02 and 13,484.52

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Solution

The fourth proportional to 22,251.72, 33,361.02 and 13,484.52 is: 20,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,251.72 : 33,361.02 = 13,484.52 : x
  2. Step 2: Convert to fraction form
    22,251.72/33,361.02 = 13,484.52/x
  3. Step 3: Cross multiply
    22,251.72x = 33,361.02 × 13,484.52
  4. Step 4: Simplify right side
    22,251.72x = 449,857,341.41
  5. Step 5: Solve for x
    x = 449,857,341.41/22,251.72
  6. Step 6: Final answer
    x = 20,216.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.